Crossed Andreev Re ection in Quantum Wires with Strong Spin-Orbit Interaction
arXiv:1109.6357 · doi:10.1103/PhysRevB.85.235433
Abstract
We theoretically study tunneling of Cooper pairs from an s-wave superconductor into two semiconductor quantum wires with strong spin-orbit interaction under magnetic field, which approximate helical Luttinger liquids. The entanglement of electrons within a Cooper pair can be detected by the electric current cross correlations in the wires. By controlling the relative orientation of the wires, either lithographically or mechanically, on the substrate, the current correlations can be tuned, as dictated by the initial spin entanglement. This proposal of a spin-to-charge readout of quantum correlations is alternative to a recently proposed utilization of the quantum spin Hall insulator.
5 pages, 2 figures
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Cited by in corpus (15)
- Majorana Kramers pairs in higher-order topological insulators
- Time-Reversal Invariant Parafermions in Interacting Rashba Nanowires
- Kramers Pairs of Majorana Fermions and Parafermions in Fractional Topological Insulators
- Giant spin orbit interaction due to rotating magnetic fields in graphene nanoribbons
- Theory of time reversal topological superconductivity in double Rashba wires -- symmetries of Cooper pair and Andreev bound states
- Cooper-pair splitting in two parallel InAs nanowires
- Low-field Topological Threshold in Majorana Double Nanowires
- Crossed Andreev Reflection in InSb Flake Josephson Junctions
- Highly tunable time-reversal-invariant topological superconductivity in topological insulator thin films
- From Cooper pair splitting to the non-local spectroscopy of a Shiba state
- Interaction effects on proximity-induced superconductivity in semiconducting nanowires
- Probing individual split Cooper-pairs using the spin qubit toolkit
- Magnetic-field switchable metal-insulator transitions in a quasi-helical conductor
- Detection of entanglement by helical Luttinger liquids
- Electron-Hole Entanglement in a Quantum Spin Hall Insulator